Kohana 3.1: Calling a controller from within another; not returning data

I just can't seem to get my head wrapped around this... I have a few questions, please bear with me! :)

First, the se开发者_运维知识库tup:

I have a controller (controllerA) which extends Controller_Template. Inside controllerA's template view I have jQuery tabs which AJAX-loads another controller (controllerB). And then I have a "core" controller which contains functions that I reuse within other controllers (well, I would LIKE TO anyway).

Now for my questions:

1. Is it okay (best practice) to be loading the jQuery tab contents like I mentioned above, with:

<li><a href="/controller">test</a></li>?

2. In JS and PHP I've always had a 'core' file for reusable code. Is there a better alternative to doing it this way? Should I instead have my core extend Controller and then extend all my controllers off of that? I'm concerned about the overhead though.

3. Last, if I call the core with Request::factory()->execute()->response(), I get nothing back unless I use something like die($data) instead of return $data it. But if I call that function from within another in the core, it won't work. How can I make it work across the board?

Thanks for your help, as always!

Brian

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1. Use reverse routing to generate project URIs. Or you will modify all of your views after changing in routing rules.
2. Extend Controller_Template in your basic controller class - it will be parent class for all other controllers.
3. Request::factory()->execute()->response() returns string, so you need at least echo. And dont forget to set $this->request->response in your ajax method.